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Artificial intelligence (AI) is the development and implementation of algorithms to create a dynamic computing environment replicating human intelligence's fundamental processes. To make a computer think and act like a human requires three essential components: a computing system, data and data management, and powerful artificial intelligence algorithms [1]. With the development of AI technology, more and more companies are turning to AI, for example, to assist them in negotiations. Artificial intelligence is a powerful tool for the mathematical analysis of negotiation situations [2]. Negotiation is a process of social interaction and communication about the distribution and redistribution of power. Traditionally, negotiation assistance has been based on normative and prescriptive research, with analysts and experts as users. Electronic negotiation systems provide services to negotiators, addressing their needs rather than guiding their operations to comply with logic and optimization, as is common in software engineering [3]. Therefore, it was found that artificial intelligence is, to some extent, helpful in negotiation. This study will use some examples, like Pactum, to examine the advantages and disadvantages of AI in business negotiations, and in the end, it will suggest some solutions for the negative impacts.

Background As technology progresses, several highly sensitive human immunodeficiency virus (HIV) screening kits are being researched and developed to quickly and efficiently identify serum HIV antibodies within the non-window period. In individuals who are HIV-seronegative, HIV infections that are not within a window period are rare. In such cases, all antibody detection methods will fail, and misdiagnosing these patients will have catastrophic consequences. Case presentation A 22-year-old male Chinese patient with diffuse exudative lesions in both lungs and initial symptoms of cough and dyspnoea was diagnosed with Pneumocystis jirovecii pneumonia (PJP) by aetiological examination, and the patient’s plasma CD4+ T-cell count was extremely low. In China, PJP is prevalent in HIV-infected individuals. Pneumocystis jirovecii (P. jirovecii) has a high colonisation rate in patients with HIV infections. This patient was naturally suspected of being an HIV patient; however, serum HIV antibody tests were negative using both an enzyme-linked immunosorbent assay (ELISA) and a latex agglutination assay, and HIV was not detected by western blotting. Subsequently, the plasma HIV viral load was found to be extremely high on two repeated plasma HIV RNA tests, thus confirming HIV-seronegative acquired immunodeficiency syndrome (AIDS) in this patient. With administration of effective anti-P. jirovecii treatment and highly active antiretroviral therapy (HAART) after diagnosis, the patient’s disease condition was rapidly controlled. Conclusion This is the second reported case in China of an HIV-seronegative AIDS patient. Such cases are also rare worldwide. Although HIV-seronegative HIV infections are rare, AIDS should be considered in immunodeficient patients with opportunistic infections, even if the test results are HIV-seronegative. Plasma HIV RNA testing is important for such patients. Electronic supplementary material The online version of this article (10.1186/s12879-019-4143-8) contains supplementary material, which is available to authorized users.

Plasma HIV load test reports: the results showed that the patientâ s viral load was 32,4000 cp/ml(19 December 2017) , and the retest result also showed a high load of 17,5000 cp/ml(29 December 2017). (PDF 435 kb)

HIV antibody test report: HIV antibody detected by western blotting(instruments: biological safety cabinet, haier company; automatic western blotting instrument, beetblot 48). Compared with the control group, HIV antibody could not be detected in all three groups. (PDF 309 kb)